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01-04-2012 07:04 AM
01-04-2012 07:04 AM
Dear Readers
I'm searching a simple way to get some infos about several processes from the running system.
Seeing the wchan field i do not understand to interpret the values:
F S UID PID PPID C PRI NI ADDR SZ WCHAN TTY TIME CMD
1003 S 0 24 0 0 152 20 e0000003bc6ac980 0 e00000046801b1e0 ? 00:00:00 net_str_cached
So any helpful inoformation how to interpret the wchan field (e00000046801b1e0) is welcome.
Greetings
Kasper_USB
Solved! Go to Solution.
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01-04-2012 07:20 AM
01-04-2012 07:20 AM
SolutionThis appears to be a good thread on WCHAN:
http://h30499.www3.hp.com/t5/Databases/WCHAN-field-in-ps/m-p/3248909#M26433
According the the ps (1) man page:
wchan
The event for which the process is waiting or sleeping; if there is none, a hyphen (-) is displayed.
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01-04-2012 07:20 AM
01-04-2012 07:20 AM
Re: ps -el -> wchan details
>Seeing the wchan field I do not understand to interpret the values:
The event for which the process is waiting or sleeping; if there is none, a hyphen is displayed.
It appears you can only see a non-zero kernel address or "-". And possibly compare the values to other processes.
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01-04-2012 10:51 PM
01-04-2012 10:51 PM
Re: ps -el -> wchan details
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01-06-2012 06:56 AM
01-06-2012 06:56 AM
Re: ps -el -> wchan details
>if there is a number in wchan field, is there a way to say what kind of event the process is waiting or sleeping?
Did you look at Patrick's link? This is an address and you need to dump kernel memory to look at what's there.
Or use nm(1) to see if that address has a name that means something.